s1 = 1
s2  = "2"
s3 = '3'
print("s1,s2,s3的值：" ,s1,s2,s3)
print("s1,s2,s3的类型", type(s1),type(s2),type(s3) )

s1,s2,s3 = "aaa","bbb","ccc"
all = s1..s2..s3  --把字符拼到一直 可以用  
print(all)

n = 123
s = "m/s"
all = tostring(n)..s  --强制转化用 to..
print(all)
